Subsequent Events - Additional Information (Detail) - Santa Monica - Subsequent Event - Water Garden Company LLC	Jan. 14, 2021 ft²
Subsequent Event [Line Items]
Area under operating leases for corporate headquarters	8,700
Lease extension period	5 years

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration